mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
fd6ac7bb9d
Signed-off-by: Dmitriy Taychenachev <dimichxp@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
/*
|
|
* Copyright 2009 Dmitriy Taychenachev <dimichxp@gmail.com>
|
|
*
|
|
* This file is released under the GPLv2 or later.
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/proc-fns.h>
|
|
#include <mach/hardware.h>
|
|
|
|
#include "crm_regs.h"
|
|
|
|
#define WDOG_WCR MXC91231_IO_ADDRESS(MXC91231_WDOG1_BASE_ADDR)
|
|
#define WDOG_WCR_OUT_ENABLE (1 << 6)
|
|
#define WDOG_WCR_ASSERT (1 << 5)
|
|
|
|
void mxc91231_power_off(void)
|
|
{
|
|
u16 wcr;
|
|
|
|
wcr = __raw_readw(WDOG_WCR);
|
|
wcr |= WDOG_WCR_OUT_ENABLE;
|
|
wcr &= ~WDOG_WCR_ASSERT;
|
|
__raw_writew(wcr, WDOG_WCR);
|
|
}
|
|
|
|
void mxc91231_arch_reset(char mode, const char *cmd)
|
|
{
|
|
u32 amcr;
|
|
|
|
/* Reset the AP using CRM */
|
|
amcr = __raw_readl(MXC_CRMAP_AMCR);
|
|
amcr &= ~MXC_CRMAP_AMCR_SW_AP;
|
|
__raw_writel(amcr, MXC_CRMAP_AMCR);
|
|
|
|
mdelay(10);
|
|
cpu_reset(0);
|
|
}
|
|
|
|
void mxc91231_prepare_idle(void)
|
|
{
|
|
u32 crm_ctl;
|
|
|
|
/* Go to WAIT mode after WFI */
|
|
crm_ctl = __raw_readl(MXC_DSM_CRM_CONTROL);
|
|
crm_ctl &= ~(MXC_DSM_CRM_CTRL_LPMD0 | MXC_DSM_CRM_CTRL_LPMD1);
|
|
crm_ctl |= MXC_DSM_CRM_CTRL_LPMD_WAIT_MODE;
|
|
__raw_writel(crm_ctl, MXC_DSM_CRM_CONTROL);
|
|
}
|